Question

PLEASE HELP! MEDALS! If a volcano spews a 500 kg rock vertically upward a distance of 500 m, what was its velocity when it left the volcano?

Answer 1

Alright so at the top of the projectile the velocity will be zero for an instant right before it falls back to the earth. So we can use the equation vf^2=vo^2+2ad
vf=final velocity
vo=inital velocity
d=distance

Answer 2

THANKS

Answer 3

np